Can't Stay Hydrated!

I don't know if this is kidney issue or what--I have so many confounding factors (blood pressure, thyroid).

I used to take a diuretic for high blood pressure until I went hypokalemic. Now the cardiologist has d/c'd that med. So I get to be bloated all the time...but I still find myself having the same signs of hypokalemia--dizziness, some PVCs, lightheadness, dark urine, fatigue, etc. I see an endocrinologist in two weeks.

Does this sound like a kidney issue? I've never had stones or anything. I don't have any pain. What do you think?